Cyberlink responds to BackupHDDVD crack: It wasn't us
by Richard Lawler 
posted Jan 2nd 2007 at 11:19AM
Since "muslix64" posted his BackupHDDVD tool there has been much discussion across the internet over how it works, and if it works at all. So far others haven't been able to obtain the necessary keys to decrypt high definition content, and now Cyberlink, makers of the PowerDVD software many assumed was exploited for the attack, is denying vulnerability. In an email to blogger Chris Lanier, the company stated not only is it confident that PowerDVD "fully protects" HD DVD contents, it does not keep the encryption "Title Keys" in system memory -- which is how muslix64 was presumed to have obtained them -- and finally that there is no evidence in the YouTube video released indicating PowerDVD was in any way actually used to crack HD DVD content. Other questions surrounding news of the crack center on the usage of PowerDVD version 6.5 instead of the just released (and Xbox 360 HD DVD player compatible) Power DVD Ultra. The video promised more details in January, and being that it's January now, we shouldn't be waiting very long to find out if this is truly a chink in the AACS armor -- and if so, where it really lies.
Reader Comments (Page 1 of 1)
Dave @ Jan 2nd 2007 12:20PM
Sooner or later it was set to happen. No protection will survive, no mater what. Bring the torrents now ;)
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Blu-ray all the way!
Jim @ Jan 2nd 2007 5:28PM
If the decrypted key is not in memory, the only other place I can think of is it's cached in the memory buffer of the HD-DVD drive itself?
julian @ Jan 2nd 2007 11:24PM
blu ray will be much harder to crack since they can switch rootkit for each disc once its made
Namarrgon @ Jan 2nd 2007 11:08PM
Here's that extra information he promised:
http://forum.doom9.org/showthread.php?p=924730#post924730
agentbb007 @ Jan 5th 2007 4:48PM
I think this is a hoax.
1) Why didnt he include 1 key so everyone could prove the concept?
2) He contradicts himself, he says in his FAQ Read the AACS, you will understand as if its really easy. But then in his post he says Few skilled persons can do massive volume key extraction. I dont believe he knows how to extract the keys all he showed in his video was a SHA1 hash of the VTKF000.AACS file which even I can do.
I'll believe this when someone posts a key so I can do it myself.